Exercise block



FIG. 1 is a front view of an exercise block according to a first embodiment of the design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side perspective view thereof;

FIG. 8 is a left side perspective view thereof;

FIG. 9 is a right side view thereof shown in an environment of use;

FIG. 10 is a rear view thereof shown in an environment of use;

FIG. 11 is a front view of an exercise block according to a second embodiment of the design;

FIG. 12 is a rear view thereof;

FIG. 13 is a right side view thereof;

FIG. 14 is a left side view thereof;

FIG. 15 is a top view thereof;

FIG. 16 is a bottom view thereof;

FIG. 17 is a right side perspective view thereof;

FIG. 18 is a left side perspective view thereof;

FIG. 19 is a right side view thereof shown in an environment of use; and,

FIG. 20 is a rear view thereof shown in an environment of use.

The portions of the exercise block shown in dash-dash broken lines in FIGS. 1-10 do not form part of the claimed design. The dash-dash broken line showing of the person and mat in FIGS. 9-10 and 19-20 is for the purpose of illustrating portions of the environmental structure and forms no part of the claimed design. The dot-dash broken lines shown on the front and back of the exercise block in FIGS. 1-2, 7-8, and 10 are for illustrating the boundary of the design only and do not form part of the claimed design. 

CLAIM The ornamental design for an exercise block, as shown and described. 